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Then choose the correct statement:-...


Then choose the correct statement:-

A

A:La

B

B:Se

C

E:Hf

D

All are incorrect

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The correct Answer is:
D
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ALLEN-TEST PAPERS-PAPER 1
  1. The correct order for triple bond energy in CO, N2, CN and C-=C is ,

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  2. Which of the following statements is correct:

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  3. Then choose the correct statement:-

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  4. In the reaction :Cl(2)+OH^(-)rarrCl^(-)+ClO(4)^(-)+H(2)O

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  5. Oxidation numbers of Mn in its compounds MnCl(2),Mn(OH)(3),MnO(2) and ...

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  6. N(2)+3H(2)hArr2NH(3) if in equilibrium mixture by volume N(2) is 40%, ...

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  7. Given the following reaction and equilibrium constant CO(g)+(1)/(2)O...

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  8. Approximate p.H,0.1M aqueous H(2)S solution when K(1) and K(2) for H(2...

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  9. A buffer solution contains 100mL of 0.01 M CH(3)COOH and 200mL of 0.02...

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  10. The heat of combustion of ethylene at 18^(@)C and at constant volume i...

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  11. One mole of any substance contains 6.022xx10^23 atoms/molecules. Numbe...

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  12. Which of the following statements is correct about the given reaction ...

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  13. Two flask A and B of equal capacity contains CO(2) and O(2) gas under ...

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  14. The ratio of area covered by second orbit to the first orbit in hydrog...

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  15. The wave number of the spectral line in the emission spectrum of hydro...

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  16. The shortest wavelength in hydrogen spectrum of Lyman series when R(...

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  17. Determine which of the following reactions at constant pressure rep...

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  18. The pressure -volume work for an ideal gas can be calculated by using ...

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  19. 12 Litres of CO(2) gas is obtained on complete combustion of 5 litre g...

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  20. The correct IUPAC name of the following? HOOC-CH(2)-underset(NO(2))u...

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